Science can be more mystifying than magic and make just as good a trick. Put matches in a water bottle and watch them sink or rise. Command an eggshell to turn a somersault, or a triangle of paper to dance on the surface of a bowl of water. Keep a balloon inflated with its mouth open, and over seventy others. 96 pages, 89 b/w illus., 5 3/8 X 8 1/4.